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CTI 2572 Installation and Operation Guide
101
HEX DEC DESCRIPTION SOLUTION
02AC 684 MEMORY READ ERROR
The 2572 was unable to read the requested
V memory.
If this occurs on a WRITE REMOTE
command block, it indicates that the 2572
could not obtain the data from the local PLC
V memory.
If this occurs on a READ REMOTE
command block, it indicates that the
memory in the remote device could not be
read.
When this error occurs, it is usually due to an
invalid memory address specification in the
command block. Check the value for Source
in Offset 3 and make corrections if necessary.
When this error is returned in response to a
READ REMOTE command block, it is also
possible that there is a problem in the remote
PLC which prevents the 2572 from reading V
memory. Retry the command. If the problem
persists, check the remote device.
02AD 685 MEMORY WRITE ERROR
The 2572 was unable to write the requested
memory.
If this occurs on a WRITE REMOTE
command block, it indicates that the remote
device could not write the data into remote
memory.
If this occurs on a READ REMOTE
command block, it indicates that the local
PLC could not write the result from the
remote device into local V memory
When this error occurs, it is usually due to an
invalid memory address specification in the
command block. Check the value for
Destination in Offset 5 and make corrections if
necessary.
When this error is returned in response to a
WRITE REMOTE command block, it is
possible that there is a problem in the remote
PLC which prevents the 2572 from writing V
memory. Retry the command, if the problem
persists, check the remote device